RFC 3719 (rfc3719) - Page 1 of 15
Recommendations for Interoperable Networks using Intermediate System to Intermediate System (IS-IS)
Alternative Format: Original Text Document
Network Working Group J. Parker, Ed.
Request for Comments: 3719 Axiowave Networks
Category: Informational February 2004
Recommendations for Interoperable Networks using
Intermediate System to Intermediate System (IS-IS)
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2004). All Rights Reserved.
Abstract
This document discusses a number of differences between the
Intermediate System to Intermediate System (IS-IS) protocol as
described in ISO 10589 and the protocol as it is deployed today.
These differences are discussed as a service to those implementing,
testing, and deploying the IS-IS Protocol. A companion document
discusses differences between the protocol described in RFC 1195 and
the protocol as it is deployed today for routing IP traffic.
Table of Contents
1. Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Constants That Are Variable . . . . . . . . . . . . . . . . . 2
3. Variables That Are Constant . . . . . . . . . . . . . . . . . 4
4. Alternative Metrics . . . . . . . . . . . . . . . . . . . . . 6
5. ReceiveLSPBufferSize. . . . . . . . . . . . . . . . . . . . . 6
6. Padding Hello PDUs. . . . . . . . . . . . . . . . . . . . . . 8
7. Zero Checksum . . . . . . . . . . . . . . . . . . . . . . . . 9
8. Purging Corrupted LSPs. . . . . . . . . . . . . . . . . . . . 10
9. Checking System ID in Received point-to-point IIH PDUs. . . . 10
10. Doppelganger LSPs . . . . . . . . . . . . . . . . . . . . . . 11
11. Generating a Complete Set of CSNPs. . . . . . . . . . . . . . 11
12. Overload Bit. . . . . . . . . . . . . . . . . . . . . . . . . 12
13. Security Considerations . . . . . . . . . . . . . . . . . . . 13
14. References. . . . . . . . . . . . . . . . . . . . . . . . . . 13
15. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 14
16. Author's Address . . . . . . . . . . . . . . . . . . . . . . 14
17. Full Copyright Statement. . . . . . . . . . . . . . . . . . . 15
Parker Informational